Eau Galle is a buttress dam located in Dunn County, Wisconsin, built in 1913. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 31 ft31 ft tall and 171 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Eau Galle
The primary purpose of Eau Galle is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Eau Galle Renewable Energy Co. (local government). It impounds the Eau Galle near Eau Galle.
The dam stands 31 feet tall and stretches 171 feet across, creates a reservoir covering 350 acres, has a maximum storage capacity of 2,070 acre-feet, and collects water from a drainage area of 173 square miles. Completed in 1913, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/18/2022.
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Location
| State | Wisconsin |
| County | Dunn |
| Nearest City | Eau Galle |
| River/Stream | Eau Galle |
| Coordinates | 44.69386, -92.01022 |
Physical Characteristics
| Dam Type | Buttress |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 171 ft |
| Year Completed | 1913 (113 years old) |
Storage & Hydraulics
| NID Storage | 2,070 acre-ft |
| Max Storage | 2,070 acre-ft |
| Normal Storage | 2,070 acre-ft |
| Surface Area | 350 acres |
| Drainage Area | 173 sq mi |
| Max Discharge | 20,000 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Eau Galle Renewable Energy Co. |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/18/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WI00008 |
| Federal ID | WI00008 |
| More Info | State Dam Safety Program |